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Inside unit The control transformer blowed up when when water got on it from thawing out the coil after it froze over due to being low on coolant. I call a repair company and they installed the wired transformer backwards Where would i get a wiring diagram for a Intertherm heat pump Model#: E1EH-105HA SERIAL#: E1E9505-06625

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How do you know it was installed backwards?

Posted on Mar 29, 2009


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You can get one from an american supply near you. but you dont need one for a transformer. the istructions will be printed on the transformer. just put th high power where it is labeled and the low power on the other side. that is after you get a new one. also check to see if there is a fuse on the circuit board

Posted on Oct 30, 2008

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1 Answer

Bryant central a/c working great, then suddenly inside fan not working, but outside unit on and pipe frozen.


sounds like inside coil froze due to low air flow. bad fan motor, fan relay,dirty coil or filter.

Sep 09, 2013 | Bryant Heating & Cooling

1 Answer

Ac unit isn't blowing


It sounds like your freezing up at the coil, which in turn, blocks airflow across coil and only a small amount of air comes out of the vents. This also explains the cold air coming from fan on the outside unit, since the system cannot absorb the heat from the inside of the house through the coil. Your air outside is usually blowing out warm to hot air because thats the heat it rejects out of your system. I would turn the thermostat to "OFF" and turn just the fan setting to "ON" instead of Auto, this thaws the system out faster. Give it time to fully thaw, make sure filters are clean, and check airflow. If airflow is back to normal, your problem is more than likely the charge of refrigerant. If you have to call a technician out, make sure the unit is not frozen at all before they get there, they would not be able to do anything with the system froze. Hope this helps and good luck!

Jun 18, 2012 | Heating & Cooling

1 Answer

My copper tubing keep freezing on my ac united what should i do.


Turn off the unit and let it thaw out!!!!! Have you changed your filter? Check the evap coil to see if it is dirty. You may be low on charge of freon. Is your inside fan blowing and blowing in the right direction?

Aug 06, 2011 | Heating & Cooling

1 Answer

Ruud air conditioner froze outside an the fan runs but no air flow through house. what is causing it to do this


Turn your a/c system off and thaw out the inside coil, it will be a block of ice by now. After you get it all thawed out turn the system on and see if your inside blower runs and that the filter and coil are clean. If they are both clean and the blower works then your system is low on refrigerant and needs service by a technician who needs to repair the leak(s) and recharge your system.

Jun 22, 2011 | Heating & Cooling

1 Answer

Indoor coils freezing up


You have a low refrigerant (leak) problem or poor airflow due to dirty coils or bad fan motor.
Maybe a combination of all 3.
Check the coils for dirt and lint. Check the fan motor blower wheel for lint on the blades. Check the condensing unit refrrigerant operating pressure. Low side for R22 should be approximately 68 psi, R410 pressure should be approximately 135 psi.

Sep 28, 2009 | Intertherm P3RA-048K Air Conditioner

3 Answers

The inside RUUD AC unit has ice and no cold air is blown


it is likely low on coolant or as some say "freon" that or the indoor fan motor has not run properly. let it thaw completely by shutting it off and just turning on your fan switch from auto to the on positon. if you begin to feel air flow eventually you need coolant added b/c you probably have a leak from the system being old

Sep 13, 2009 | Ruud UBHC Air Conditioner

1 Answer

Changed the compacitor unit ran fine for half a day..then would not blow cold air..so i let it thaw overnight turned it back onit was fine..then after 5 hours..back to not blowing cold air..any...


if you let it thaw it sounds like your coil froze up
a frozen coil is usually due to lack of air flow (a dirty air filter or bad blower motor) if both of these are ok then you probably are low on refrigerant
i would suggest finding someone who specializes in goodman or someone who is certified to handle refrigerant to check your refrigerant pressures

Jul 29, 2009 | Goodman CKL24AR24 Air Conditioner

1 Answer

AC unit dripping water and won't cool


The coil is likely froze up due to dirty evaporator plugged ,air filter or low on freon .Tom

Jun 18, 2009 | Heating & Cooling

2 Answers

One unit runs a while, powers down, other unit blows transformer


you say it keeps blowing the transformer? you mean circuit breaker? if it is the circuit breaker, have the wiring checked for a short, if no short do a ohm test on the compressor. it may have shorted out internaly.

May 31, 2009 | Haier HC48C1VAR Central Air Conditioner

1 Answer

Furance Nordyne E!EB-015HA


If the transformer is you must have a low voltage short.
does your transformer have a trip switch that you can reset?
You could try to use a hair drier and dry out any water residu in the compartment. but my guess is you have a low voltage short.

May 18, 2008 | Heating & Cooling

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